NHTSA Complaint #10243306 — 2003 TOYOTA SIENNA

UNINTENDED HIGH SPEED ACCELERATION I WAS ACCELERATING TO MERGE ONTO THE HIGHWAY AND I BRIEFLY USED THE BRAKES TO ALLOW A LARGE TRUCK TO GO PAST BEFORE MERGING. I'M NOT SURE IF I THEN PUT MY FOOT ON THE ACCELERATOR OR THE BRAKE, BUT THE 2003 TOYOTA SIENNA BEGAN ACCELERATION ON ITS OWN AS THOUGH THE CRUISE CONTROL HAD BEEN SET AT 100 MPH AND IT WAS TRYING TO GET THERE! I DID NOT HAVE THE CRUISE CONTROL ON AT THE TIME. I THEN PUT ON THE BRAKES TO REDUCE MY SPEED, AND I WAS ABLE TO REDUCE THE SPEED BUT THE BRAKES WERE DEFINITELY FIGHTING AGAINST THE VEHICLE'S DESIRE TO GO 100 MPH. I PULLED THE CAR OFF AT THE NEXT EXIT AND WAS UNSURE OF THE BEST WAY TO STOP THE VEHICLE. MY 2 KIDS WERE IN THE BACK SEAT AND MY DAUGHTER WAS SAYING SHE WAS VERY SCARED. I CONTINUED TO APPLY THE BRAKES AND PULLED OVER. I TURNED THE IGNITION OFF WHILE THE VAN WAS STILL MOVING JUST TO GET IT TO STOP. AFTER 5-10 SECONDS I TURNED THE CAR ON AGAIN AND THE ENGINE WAS STILL REVVING AT A HIGH RPM. I TURNED IT OFF AGAIN, WAITED A WHILE LONGER, AND WHEN I TURNED IT ON AGAIN THE VAN BEHAVED NORMALLY. I FEAR THAT IN A DIFFERENT SITUATION THIS COULD HAVE RESULTED IN A SERIOUS ACCIDENT OR INJURY. IF ANYONE HAD BE IN FRONT OF ME AND I HAD NEEDED TO STOP QUICKLY, I WOULD HAVE BEEN UNABLE TO STOP. MY MECHANIC CHECKED OUT THE CAR YESTERDAY AND FOUND NOTHING WRONG. HIS GUESS IS THAT THE CRUISE CONTROL ACTUATOR DID NOT FUNCTION PROPERLY. I READ ABOUT OTHER SIMILAR INCIDENTS INVOLVING UNINTENDED ACCELERATION WITH TOYOTA SIENNAS. THIS IS A SERIOUS PROBLEM THAT NEEDS IMMEDIATE ATTENTION. *TR